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Issue 32 (2020) IDF IDF Faunistic Studies in South­east Asian and Pacific Island Odonata Journal of the International Dragonfly Fund 1­11 Dennis Farrell & Noppadon Makbun First records of three Lestidae species in Thailand, with a checklist of the dragonflies known from Nam Nao National Park and Phu Khieo Wildlife Sanctuary (Odonata) published 04.06.2020 No. 32 ISSN 2195­4534 The International Dragonfly Fund (IDF) is a scientific society founded in 1996 for the impro­ vement of odonatological knowledge and the protection of species. Internet: http://www.dragonflyfund.org/ This series intends to contribute to the knowledge of the regional Odonata fauna of the Southeas­tern Asian and Pacific regions to facilitate cost­efficient and rapid dissemination of faunistic data. Southeast Asia or Southeastern Asia is a subregion of Asia, consisting of the countries that are geo­graphically south of China, east of India, west of New Guinea and north of Austra­ lia. Southeast Asia consists of two geographic regions: Mainland Southeast Asia (Indo­ china) and Maritime Southeast Asia. Pacific Islands comprise of Micronesian, Melanesian and Polynesian Islands. Editorial Work: Martin Schorr, Milen Marinov and Rory Dow Layout: Martin Schorr IDF­home page: Holger Hunger Printing: Colour Connection GmbH, Frankfurt Impressum: Publisher: International Dragonfly Fund e.V., Schulstr. 7B, 54314 Zerf, Germany. E­mail: [email protected] Responsible editor: Martin Schorr Cover picture: Indolestes gracilis expressior Kosterin, 2015 Photographer: Dennis Farrell Published 04.06.2020 First records of three Lestidae species in Thailand, with a checklist of the dragonflies known from Nam Nao National Park and Phu Khieo Wildlife Sanctuary (Odonata) Dennis Farrell1 & Noppadon Makbun2* 19/756 Moo 11, Pimanthani Muang Gao, Glang Muang, Amphur Muang, Khon Kaen, 40000, Thailand. Email address: [email protected] 2211/5 Moo 4, Takhli, Nakhon Sawan, 60140, Thailand. Email address: [email protected] *Corresponding author Abstract Three lestid species, Indolestes gracilis expressior Kosterin, 2015, Indolestes inflatus (Fraser, 1933) and Orolestes selysi McLachlan, 1895, are reported from Thailand for the first time from records based mostly on photographs. The biology and habitats of the spe­ cies are briefly discussed. A checklist of the Odonata recorded in Nam Nao National Park and Phu Khieo Wildlife Sanctuary is also presented for the first time. Key words: Indolestes, Orolestes, damselfly, dragonfly, Odonata, new records, north­east, Thailand, checklist, Nam Nao National Park, Phu Khieo Wildlife Sanctuary Introduction Lestidae is a large family of damselflies distributed in almost every continent with 163 recognised species (Schorr & Paulson 2020). Ten species belonging to four genera (Indo­ lestes, Lestes, Orolestes, Platylestes) have been recorded from Thailand (Hämäläinen & Pinratana 1999). Although new national and provincial records of Odonata have been published from Thailand (including Day et al. 2012; Makbun 2017a,b; Makbun & Fleck 2018; Sribal et al. 2018; Chainthong et al. 2020; Fleck 2020), none of these refer to any lestid species. In this paper, new national records of three lestid species discovered in Nam Nao National Park and Phu Khieo Wildlife Sanctuary in Thailand are reported. These pro­ tected areas are situated in the Phetchabun Mountains and part of the Western Isaan Forest Complex, which covers 4,594 km² in four national parks and four wildlife sanctuaries in north­east Thailand (Fig.1). Nam Nao National Park was gazetted in 1972, covering 966 km² in Petchabun and Chaiyaphum provinces with an altitude ranging between 650 and 1,200 m asl. The park is a large mountainous forest comprising mainly hill ever­ green forests, mixed deciduous forest, coniferous forest, deciduous dipterocarp forest, and some grassland areas with small streams and waterfalls. The annual average temperature is 25 °C (DNP 2020a). Phu Khieo Wildlife Sanctuary covers 1,560 km² in Chaiyaphum Province. The altitude ranges from 235 to 1,310 m asl. Phu Khieo Wildlife Sanctuary consists mainly of deciduous dipterocarp forest, coniferous forest and tropical Faunistic Studies in SE Asian and Pacific Island Odonata 32 | 1 Farrell & Makbun Fig. 1. Locations of Nam Nao National Park (red circle) and Phu Khieo Wildlife Sanctuary (yel­ low triangle). grassland forest with lakes and small streams (DNP 2020b). The odonate diversity of Nam Nao National Park and Phu Khieo Wildlife Sanctuary is still inade­ quately known. Three publications include re­ cords of Odonata of Nam Nao National Park. Day et al. (2012) included records of 33 species from this na­ tional park. Hämäläinen (2017: 9) added Bayadera serrata Davies & Yang, 1996 to the species list. Kosterin (2016) provided a record of Onychargia priydak Kosterin, 2015 from Nam Nao NP, photographed by Dennis Farrell. It is the same record, which was earlier published in Day et al. (2012: 18) as ‘Onychalgia atrocyana (♂ with a highly pruinosed thorax)’. However, since this record was made ‘2 km S of Nam Nao town’, a place not within the national park, O. priydak is not included in the species list of the national park (Table 1). Rhinagrion hainanense Wilson & Reels, 2001 was added to the list by Sribal et al. (2018). Phu Khieo Wildlife Sanctuary is a better studied area in terms of the number of species. Hämäläinen (1987) wrote a report on a dragonfly collecting trip in Thailand, which included a three­day stay at Phu Khieo Wildlife Sanctuary in June 1984. Only 24 out of more than 50 species were shown in the report without a complete checklist. Asahina (1990) recorded Ceriagrion indochinense Asahina, 1967, Gynacantha subinterrupta Rambur, 1842, and Epophthalmia vittigera bellicosa Lieftinck, 1948. Asahina (1993) examined specimens from various locations and identified two species from this area: Copera marginipes (Rambur, 1842) and Trithemis aurora (Burmeister, 1839). Garrison & Garrison (1996) then found 45 species; of which, five species were identified at generic level. 2 | Faunistic Studies in SE Asian and Pacific Island Odonata 32 Thailand: Lestidae & Odonata checklist of Nam Nao NP & Phu Khieo Wildlife Sanctuary Materials and Methods The authors have surveyed dragonflies and damselflies in Nam Nao National Park and Phu Khieo Wildlife Sanctuary between 2009 and 2020 and their work has yielded impressive results. Besides the records of the three lestid novelties, a checklist of Odo­ nata species known from these two protected areas is provided. The new country records are based on the authors’ high­quality photographs and voucher specimens collected. The photographer’s name is given in parentheses at the end of the record. A checklist was made through the compilation of all available published records, as well as the authors’ personal records. The checklist also includes unpublished records made in Phu Khieo by Amnuay Pinratana and/or his co­workers during several visits between 1981 and 1987 and by Matti Hämäläinen in 1984. The map was created with SimpleMappr (Shorthouse, 2010). The following abbreviations are used in this paper: mm = millimetre; m = metre; km2 = square kilometre; asl = above sea level. Results New records for Thailand Lestidae 1). Indolestes gracilis expressior Kosterin, 2015 (Fig. 2) 1♂, Thailand, Chaiyaphum province, Chaiyaphum, Thung Kramang lake, Phu Khieo Wildlife Sanctuary, 11­vii­2015 (Dennis Farrell); 1♂, same locality, 02­iv­2016 (Dennis Farrell). a b c d Fig. 2. Indolestes gracilis expressior Kosterin, 2015. (a–b) male in life, 11­vii­2015, Phu Khieo Wildlife Sanctuary, Chaiyaphum province, Thailand, (a) lateral view, (b) oblique lateral. (c–d) male anal appendages, (c) lateral view, (d) top view. Photos: Dennis Farrell. Faunistic Studies in SE Asian and Pacific Island Odonata 32 | 3 Farrell & Makbun Indolestes gracilis consists of three subspecies: I. g. gracilis (Hagen in Selys, 1862) from Sri Lanka, I. g. davenporti Fraser, 1930 from South India, and I. g. expressior Kosterin, 2015 from Cambodia (Kosterin 2015). Indolestes g. expressior was described from Mondulkiri Province in eastern Cambodia. This subspecies can be differentiated from other subspecies by a combination of characters as follows: broad dark­bronze middorsal band with straight margin, the shape of the cerci with a foot­like apical portion and paraprocts bluntly round in dorsal view. The photographic records from Thailand fit well with the description, especially the shape of the cerci and para­ procts. It is clearly a rare species and only exists there in small numbers. This record extends its known range from Cambodia to Thailand. 2). Indolestes inflatus (Fraser, 1933) (Fig. 3) 1♂, Thailand, Petchabun province, Petchabun, ‘Helicopter Pad’ lake, Nam Nao Na­ tional Park, 02­vii­2011 (Dennis Farrell); 1♂ 1♀, same locality, 09­vii­2011 (Dennis Farrell); 4♂♂, same locality, 16­vii­2011, Noppadon Makbun leg.; 1♂, same locality, 17­vii­2011, Noppadon Makbun leg.; 2♂♂ 1♀, same locality, 30­vi­2012 (Dennis Farrell); 1♂, same locality, 20­iii­2012 (Dennis Farrell). 1♂, Thailand, Petchabun province, Nam Nao Na­ tional Park, tiny temporary pond, 28­viii­2012 (Dennis Farrell). The first author no­ ticed an unknown lestid species at the edge of a large, ex­ posed and natural lake within Nam Nao National Park at ap­ proximately 850 m asl in 2011. Photo­ a graphs were first sent to Matti Hämäläinen who then forwarded them to Rory Dow for identification. In­ dividuals on the pho­ tographs were ten­ tatively identified as Indolestes infla­ tus (Fraser,
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